In adversity, remember to keep an even mind.
I beseech you to treasure up in your hearts these my parting words: Be ashamed to die until you have won some victory for humanity.
To know all things is not permitted.
We get blows and return them.
Even play has ended in fierce strife and anger.
There is a mean in all things; even virtue itself has stated limits; which not being strictly observed, it ceases to be virtue.